Adjustable axletree for mobile artillery.



N. KOCH ADJUSTABLE AXLETREE FOR MOBILE ARTILLERY.

APPLICATION FILED JAN. 27\1913.

Patented 7, 1915.

. the axle-tree.

of the axle-tree.

nrrnn STATES PATENT OFFICE. I

nonnnrar KOCH, or ESSEN-RELLIIYIN'GI-IAUSEN, GERMANY, ASSIGNOB 'roFRIED. xnu'rr AKTIENGESELLSCHAFT, or ESSEN-ON-THE-BUHB, GERMANY.

ADJUSTABLE AXLETREE FOR MOBILE ARTILLERY.

Specification of Letters Patent.

Patented Dec. 7, 1915.

Application filed January 27,1913. Serial No. 744,425.

One embodiment of the invention is illustrated in the drawings in itsapplication to a gun mount,'wherein the carriage body is displaceable onan axle-tree for laying the gun inside direction, and wherein-- Figure 1is a side view of the gun mount partly in section and with one of thecarriage'wheels left out; Fig. 2 a front viev's of the mount partly insection corresponding to Fig. 1; Fig. 3a view corresponding to Fig. 2with the carriage wheels in inclined position; Fig. 4 a section on line4-4 of Fig. 2; Fig. 5 a detail view partly in section and in largerscale and Fig. 6 a section on the line 6-6 of Fig. 5.

The gun A is carried by the cradle B which rests with its horizontaltrunnion b in the carriage body C. Between the cradle B and the carriagebody C is inserted an elevating gear comprising a toothed segment, andwhich toothed segment is designated by D and the hand wheel by d. At therear end of the carriage body is revolubly mount- I ed a spade N bymeans of a vertical bolt n, see Fig. 1.

At the muzzle end of the gun carriage (l is situated a guiding piece 0The carriage hodv is by means of this guiding, piece guided on a rail a,see Figs.- 2, 3 and 4, which is curved concentric to the axis of thespade bolt n and mounted on the middle part E of the axle-tree. E, E insuch a manner that the training of the gun mayqbe effected by displacingthe carriage body on The training gear is inserted between the carriagebody C and the part E The training gear comprises a worm G. see Fig. 4which is carried in bearings in the'carriage body, and which worm is inmesh with the worm teeth e provided on the rail 6 and may be turned by ahand wheei G The axle-tree of the gun carriage consists of a middleportion E and two cranked axle shanks E WhlCh carry the carriage wheelsThe middle portion E may be swung relative to the cranked axle-shanks Earound an axis situated in the elevating plane of the gun, that means ina plane runnmg at right angles to the axis of the horizontal trunnionsb. The outer ends of the middle portion E of the axle-tree, and theinner ends of the axle shanks E are for this purpose provided withsector-shaped projections e e and which engage with eadh other in themanner shown in Fig. 6 like closed prismatic guides (dove-tail guides).In each of the projections e of the axle shanks E is mounted a worm Hwhich is in mesh with the worm teeth e, see Figs; 5 and 6, of thecorrespondingiprojection e".

A hand wlieel serves to turn the Worms H, which hand wheel is mounted ona shaft of one of the worms and which stands in gearing connection withthe shaft h of the other worm by means of two pairs of bevel wheels Kand K and a shaft L.' This shaft L and the ends of the shaft 71. whichcarry the bevel wheels K are carried in bearings provided in the arms eof the projections e.

In case the gun carriage stands with inclined wheels on the ground. themiddle portion E of the axle-tree E E is then turned by means of thehand wheel M rela-v tive to the carriage wheels F into-a position inwhich the axis of the trunnionsb will bei tirely eliminated fromeveryelevation andeverv training of the gun.

Claims:

1. A traveling gun carriage comprising a carriage body adapted to bearon the ground, a wheel axle comprising a pair of axle arms movablymounted on the carriage body and wheels .thereon, a gun barrel, a cradlefor the gun barrel, horizontal trunnions allowing elevation of the gunbarrel relatively to the carriage body, and means between said carriagebody and said axle arms allowing said carriage body to swing around alongitudinal axis relatively to said wheels.

2-. A gun carriage with an adjustable axle-tree, said axle-treecomprising a middle portion, and a pair of axle shanks forming the axlearms for the carriage wheels, said 3, A gun carriage ith an adjustnliieaxle-tree, SHlLl ll'XlQFUQQ comprising a muddle poi'fiion, and a panof21Xl sliziii leriuiiig the. axle arms for the :uiriage wheels, saidmiddle pci'timi being innnm'ably cenncctccl Willi the gun cal'i'izwetransverse Jei icnl plane, zucimtc 2 iii 5 t the free ends of saidnlllllllfi pm'tiumccnc around :1 lun'izmilzil l0 'tm ml {lies 2:.curiespomliug s: 54 iiig i-esl ictiwiy with said guides at the inner end(if each of said shanks, and iiiez'ins fer sin'ililtnneeusly moying saidmiddle porticn' relatively to said axle shanks. U V

4;. A gun carriage with an uijuslmlile HXlG- CKGQ, said axle-treecomprising a middle perm-en and a pair of axle shanks forming the axle,arms for the carriage wheels, said middle pertion beingfiminovably,connected with the gun carriage ii a transverse Vela tics] plane,arcuate guides at the freeends of said miclglle portion concentricallycurved. around ,a horizontal longitudinal axis, 2L c0rresponding slideengaging respectively with sziicl guiclesat the inner end of each (ifsaid Hilllill'd milieu being iminm'alily (iOiili'lfltilQil with the guncarriage in a transverse Vern-- cal plane. men-Lite guides at the freesme ls of said middle poi-lion and com: Ari curved zuimnzl 2! horizontall" axis, a cci'i-espmi'cling slide engag i tively with said guides 21?;the lllil end of? each of said axle shanks, and me as for moving said.middle portion relatively to said axle shanks; said means comprising a,

Worm in each of said slides and a QOOiTl'lECi gearing connection wherebylie gun trimnlOns may be relamed lmrizl'intully bulb in elevation and.training of the gun,

Ihe fOI'O 'OEH s )ecification s1 necl at Da 1 men, Germany, llns 25rdday of Decemnez NORBERT KOCH. [us] In presence of HELEN NUFER, Amiiiii'iNUFER.

